We will know for sure that 19k is no longer possible only after the price gets much higher.
19k is something that will be broken many more times, regardless of the fact that from time to time (like now) the market prepares a small trap and tries to convince the naive that it's time for a new bull run. The biggest mistake that the OP and others have is that he is completely lost in time, and that's why he loses money. However, he doesn't have to be completely disappointed, because his loss is someone else's gain.
I don't say it will or it won't. I will say that I can tell "it won't" only after the price gets much higher.
The current move may be a bull trap or may be the end of the bear market. While I hope for the second, the current bear market gave me plenty of bad surprises, so I won't be too optimistic.